Finding the Fourth Proportional to 92,573.64, 138,843.90 and 42,651.72

Step by Step Solution

1. Step 1: Write the proportion equation
   92,573.64 : 138,843.90 = 42,651.72 : x
2. Step 2: Convert to fraction form
   92,573.64/138,843.90 = 42,651.72/x
3. Step 3: Cross multiply
   92,573.64x = 138,843.90 × 42,651.72
4. Step 4: Simplify right side
   92,573.64x = 5,921,931,146.51
5. Step 5: Solve for x
   x = 5,921,931,146.51/92,573.64
6. Step 6: Final answer
   x = 63,969.95