Finding the Fourth Proportional to 139,297,441.32, 208,946,648.16 and 42,253,985.16

Step by Step Solution

1. Step 1: Write the proportion equation
   139,297,441.32 : 208,946,648.16 = 42,253,985.16 : x
2. Step 2: Convert to fraction form
   139,297,441.32/208,946,648.16 = 42,253,985.16/x
3. Step 3: Cross multiply
   139,297,441.32x = 208,946,648.16 × 42,253,985.16
4. Step 4: Simplify right side
   139,297,441.32x = 8,828,828,570,584,380
5. Step 5: Solve for x
   x = 8,828,828,570,584,380/139,297,441.32
6. Step 6: Final answer
   x = 63,381,125.22