Finding the Fourth Proportional to 109,411.50, 150,987.96 and 59,110.50

Step by Step Solution

1. Step 1: Write the proportion equation
   109,411.50 : 150,987.96 = 59,110.50 : x
2. Step 2: Convert to fraction form
   109,411.50/150,987.96 = 59,110.50/x
3. Step 3: Cross multiply
   109,411.50x = 150,987.96 × 59,110.50
4. Step 4: Simplify right side
   109,411.50x = 8,924,973,809.58
5. Step 5: Solve for x
   x = 8,924,973,809.58/109,411.50
6. Step 6: Final answer
   x = 81,572.54