Finding the Fourth Proportional to 100,931,721.84, 139,285,899.81 and 54,521,976.42

Step by Step Solution

1. Step 1: Write the proportion equation
   100,931,721.84 : 139,285,899.81 = 54,521,976.42 : x
2. Step 2: Convert to fraction form
   100,931,721.84/139,285,899.81 = 54,521,976.42/x
3. Step 3: Cross multiply
   100,931,721.84x = 139,285,899.81 × 54,521,976.42
4. Step 4: Simplify right side
   100,931,721.84x = 7,594,142,545,079,303
5. Step 5: Solve for x
   x = 7,594,142,545,079,303/100,931,721.84
6. Step 6: Final answer
   x = 75,240,394.26