Finding the Fourth Proportional to 99,381.26, 137,149.71 and 56,948.00

Step by Step Solution

1. Step 1: Write the proportion equation
   99,381.26 : 137,149.71 = 56,948.00 : x
2. Step 2: Convert to fraction form
   99,381.26/137,149.71 = 56,948.00/x
3. Step 3: Cross multiply
   99,381.26x = 137,149.71 × 56,948.00
4. Step 4: Simplify right side
   99,381.26x = 7,810,400,785.78
5. Step 5: Solve for x
   x = 7,810,400,785.78/99,381.26
6. Step 6: Final answer
   x = 78,590.28