Finding the Fourth Proportional to 81,525,498.59, 122,364,864.65 and 42,691,823.96

Step by Step Solution

1. Step 1: Write the proportion equation
   81,525,498.59 : 122,364,864.65 = 42,691,823.96 : x
2. Step 2: Convert to fraction form
   81,525,498.59/122,364,864.65 = 42,691,823.96/x
3. Step 3: Cross multiply
   81,525,498.59x = 122,364,864.65 × 42,691,823.96
4. Step 4: Simplify right side
   81,525,498.59x = 5,223,979,260,619,480
5. Step 5: Solve for x
   x = 5,223,979,260,619,480/81,525,498.59
6. Step 6: Final answer
   x = 64,077,857.24