Finding the Fourth Proportional to 91,196.52, 136,838.10 and 63,159.72

Step by Step Solution

1. Step 1: Write the proportion equation
   91,196.52 : 136,838.10 = 63,159.72 : x
2. Step 2: Convert to fraction form
   91,196.52/136,838.10 = 63,159.72/x
3. Step 3: Cross multiply
   91,196.52x = 136,838.10 × 63,159.72
4. Step 4: Simplify right side
   91,196.52x = 8,642,656,081.33
5. Step 5: Solve for x
   x = 8,642,656,081.33/91,196.52
6. Step 6: Final answer
   x = 94,769.58