Finding the Fourth Proportional to 91,156.39, 136,537.71 and 88,925.65

Step by Step Solution

1. Step 1: Write the proportion equation
   91,156.39 : 136,537.71 = 88,925.65 : x
2. Step 2: Convert to fraction form
   91,156.39/136,537.71 = 88,925.65/x
3. Step 3: Cross multiply
   91,156.39x = 136,537.71 × 88,925.65
4. Step 4: Simplify right side
   91,156.39x = 12,141,704,611.26
5. Step 5: Solve for x
   x = 12,141,704,611.26/91,156.39
6. Step 6: Final answer
   x = 133,196.42