Finding the Fourth Proportional to 102,513.59, 153,792.91 and 31,445.98

Step by Step Solution

1. Step 1: Write the proportion equation
   102,513.59 : 153,792.91 = 31,445.98 : x
2. Step 2: Convert to fraction form
   102,513.59/153,792.91 = 31,445.98/x
3. Step 3: Cross multiply
   102,513.59x = 153,792.91 × 31,445.98
4. Step 4: Simplify right side
   102,513.59x = 4,836,168,426.83
5. Step 5: Solve for x
   x = 4,836,168,426.83/102,513.59
6. Step 6: Final answer
   x = 47,175.88