Finding the Fourth Proportional to 69,191.60, 103,408.31 and 50,510.98

Step by Step Solution

1. Step 1: Write the proportion equation
   69,191.60 : 103,408.31 = 50,510.98 : x
2. Step 2: Convert to fraction form
   69,191.60/103,408.31 = 50,510.98/x
3. Step 3: Cross multiply
   69,191.60x = 103,408.31 × 50,510.98
4. Step 4: Simplify right side
   69,191.60x = 5,223,254,567.17
5. Step 5: Solve for x
   x = 5,223,254,567.17/69,191.60
6. Step 6: Final answer
   x = 75,489.72