Finding the Fourth Proportional to 99,843,907.30, 149,780,376.15 and 42,336,067.30

Step by Step Solution

1. Step 1: Write the proportion equation
   99,843,907.30 : 149,780,376.15 = 42,336,067.30 : x
2. Step 2: Convert to fraction form
   99,843,907.30/149,780,376.15 = 42,336,067.30/x
3. Step 3: Cross multiply
   99,843,907.30x = 149,780,376.15 × 42,336,067.30
4. Step 4: Simplify right side
   99,843,907.30x = 6,341,112,084,905,715
5. Step 5: Solve for x
   x = 6,341,112,084,905,715/99,843,907.30
6. Step 6: Final answer
   x = 63,510,255.72