Finding the Fourth Proportional to 42,818,323.04, 64,213,086.72 and 15,518,901.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,818,323.04 : 64,213,086.72 = 15,518,901.20 : x
2. Step 2: Convert to fraction form
   42,818,323.04/64,213,086.72 = 15,518,901.20/x
3. Step 3: Cross multiply
   42,818,323.04x = 64,213,086.72 × 15,518,901.20
4. Step 4: Simplify right side
   42,818,323.04x = 996,516,548,554,712
5. Step 5: Solve for x
   x = 996,516,548,554,712/42,818,323.04
6. Step 6: Final answer
   x = 23,273,133.50