Finding the Fourth Proportional to 49,518,012.54, 74,632,948.73 and 42,683,978.04

Step by Step Solution

1. Step 1: Write the proportion equation
   49,518,012.54 : 74,632,948.73 = 42,683,978.04 : x
2. Step 2: Convert to fraction form
   49,518,012.54/74,632,948.73 = 42,683,978.04/x
3. Step 3: Cross multiply
   49,518,012.54x = 74,632,948.73 × 42,683,978.04
4. Step 4: Simplify right side
   49,518,012.54x = 3,185,631,144,718,219.50
5. Step 5: Solve for x
   x = 3,185,631,144,718,219.50/49,518,012.54
6. Step 6: Final answer
   x = 64,332,774.71