Finding the Fourth Proportional to 76,901.09, 106,123.37 and 42,907.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,901.09 : 106,123.37 = 42,907.50 : x
2. Step 2: Convert to fraction form
   76,901.09/106,123.37 = 42,907.50/x
3. Step 3: Cross multiply
   76,901.09x = 106,123.37 × 42,907.50
4. Step 4: Simplify right side
   76,901.09x = 4,553,488,283.74
5. Step 5: Solve for x
   x = 4,553,488,283.74/76,901.09
6. Step 6: Final answer
   x = 59,212.28