Finding the Fourth Proportional to 99,950.48, 137,931.42 and 56,929.96

Step by Step Solution

1. Step 1: Write the proportion equation
   99,950.48 : 137,931.42 = 56,929.96 : x
2. Step 2: Convert to fraction form
   99,950.48/137,931.42 = 56,929.96/x
3. Step 3: Cross multiply
   99,950.48x = 137,931.42 × 56,929.96
4. Step 4: Simplify right side
   99,950.48x = 7,852,429,878.51
5. Step 5: Solve for x
   x = 7,852,429,878.51/99,950.48
6. Step 6: Final answer
   x = 78,563.21