Finding the Fourth Proportional to 52,571,865,530.72, 72,549,238,205.00 and 28,485,868,517.57

Step by Step Solution

1. Step 1: Write the proportion equation
   52,571,865,530.72 : 72,549,238,205.00 = 28,485,868,517.57 : x
2. Step 2: Convert to fraction form
   52,571,865,530.72/72,549,238,205.00 = 28,485,868,517.57/x
3. Step 3: Cross multiply
   52,571,865,530.72x = 72,549,238,205.00 × 28,485,868,517.57
4. Step 4: Simplify right side
   52,571,865,530.72x = 2,066,628,060,557,353,680,896
5. Step 5: Solve for x
   x = 2,066,628,060,557,353,680,896/52,571,865,530.72
6. Step 6: Final answer
   x = 39,310,533,109.19