Finding the Fourth Proportional to 69,191.33, 103,407.89 and 50,510.70

Step by Step Solution

1. Step 1: Write the proportion equation
   69,191.33 : 103,407.89 = 50,510.70 : x
2. Step 2: Convert to fraction form
   69,191.33/103,407.89 = 50,510.70/x
3. Step 3: Cross multiply
   69,191.33x = 103,407.89 × 50,510.70
4. Step 4: Simplify right side
   69,191.33x = 5,223,204,656.87
5. Step 5: Solve for x
   x = 5,223,204,656.87/69,191.33
6. Step 6: Final answer
   x = 75,489.30