Finding the Fourth Proportional to 98,870.31, 148,357.76 and 53,924.12

Step by Step Solution

1. Step 1: Write the proportion equation
   98,870.31 : 148,357.76 = 53,924.12 : x
2. Step 2: Convert to fraction form
   98,870.31/148,357.76 = 53,924.12/x
3. Step 3: Cross multiply
   98,870.31x = 148,357.76 × 53,924.12
4. Step 4: Simplify right side
   98,870.31x = 8,000,061,653.17
5. Step 5: Solve for x
   x = 8,000,061,653.17/98,870.31
6. Step 6: Final answer
   x = 80,914.70