Finding the Fourth Proportional to 42,710,112.18, 64,076,088.69 and 12,417,975.18

Step by Step Solution

1. Step 1: Write the proportion equation
   42,710,112.18 : 64,076,088.69 = 12,417,975.18 : x
2. Step 2: Convert to fraction form
   42,710,112.18/64,076,088.69 = 12,417,975.18/x
3. Step 3: Cross multiply
   42,710,112.18x = 64,076,088.69 × 12,417,975.18
4. Step 4: Simplify right side
   42,710,112.18x = 795,695,278,983,898.62
5. Step 5: Solve for x
   x = 795,695,278,983,898.62/42,710,112.18
6. Step 6: Final answer
   x = 18,630,137.88