Finding the Fourth Proportional to 91,557.30, 137,322.78 and 35,423.91

Step by Step Solution

1. Step 1: Write the proportion equation
   91,557.30 : 137,322.78 = 35,423.91 : x
2. Step 2: Convert to fraction form
   91,557.30/137,322.78 = 35,423.91/x
3. Step 3: Cross multiply
   91,557.30x = 137,322.78 × 35,423.91
4. Step 4: Simplify right side
   91,557.30x = 4,864,509,799.67
5. Step 5: Solve for x
   x = 4,864,509,799.67/91,557.30
6. Step 6: Final answer
   x = 53,130.77