Finding the Fourth Proportional to 91,451.17, 126,159.98 and 59,196.20

Step by Step Solution

1. Step 1: Write the proportion equation
   91,451.17 : 126,159.98 = 59,196.20 : x
2. Step 2: Convert to fraction form
   91,451.17/126,159.98 = 59,196.20/x
3. Step 3: Cross multiply
   91,451.17x = 126,159.98 × 59,196.20
4. Step 4: Simplify right side
   91,451.17x = 7,468,190,925.27
5. Step 5: Solve for x
   x = 7,468,190,925.27/91,451.17
6. Step 6: Final answer
   x = 81,663.16