Finding the Fourth Proportional to 78,588.31, 108,376.42 and 52,805.10

Step by Step Solution

1. Step 1: Write the proportion equation
   78,588.31 : 108,376.42 = 52,805.10 : x
2. Step 2: Convert to fraction form
   78,588.31/108,376.42 = 52,805.10/x
3. Step 3: Cross multiply
   78,588.31x = 108,376.42 × 52,805.10
4. Step 4: Simplify right side
   78,588.31x = 5,722,827,695.74
5. Step 5: Solve for x
   x = 5,722,827,695.74/78,588.31
6. Step 6: Final answer
   x = 72,820.34