Finding the Fourth Proportional to 34,892.47, 48,152.12 and 21,455.79

Step by Step Solution

1. Step 1: Write the proportion equation
   34,892.47 : 48,152.12 = 21,455.79 : x
2. Step 2: Convert to fraction form
   34,892.47/48,152.12 = 21,455.79/x
3. Step 3: Cross multiply
   34,892.47x = 48,152.12 × 21,455.79
4. Step 4: Simplify right side
   34,892.47x = 1,033,141,607.61
5. Step 5: Solve for x
   x = 1,033,141,607.61/34,892.47
6. Step 6: Final answer
   x = 29,609.30