Finding the Fourth Proportional to 98,933.31, 148,153.79 and 69,211.98

Step by Step Solution

1. Step 1: Write the proportion equation
   98,933.31 : 148,153.79 = 69,211.98 : x
2. Step 2: Convert to fraction form
   98,933.31/148,153.79 = 69,211.98/x
3. Step 3: Cross multiply
   98,933.31x = 148,153.79 × 69,211.98
4. Step 4: Simplify right side
   98,933.31x = 10,254,016,582.67
5. Step 5: Solve for x
   x = 10,254,016,582.67/98,933.31
6. Step 6: Final answer
   x = 103,645.75