Finding the Fourth Proportional to 260,868,970.10, 359,997,056.69 and 143,393,051.31

Step by Step Solution

1. Step 1: Write the proportion equation
   260,868,970.10 : 359,997,056.69 = 143,393,051.31 : x
2. Step 2: Convert to fraction form
   260,868,970.10/359,997,056.69 = 143,393,051.31/x
3. Step 3: Cross multiply
   260,868,970.10x = 359,997,056.69 × 143,393,051.31
4. Step 4: Simplify right side
   260,868,970.10x = 51,621,076,420,681,184
5. Step 5: Solve for x
   x = 51,621,076,420,681,184/260,868,970.10
6. Step 6: Final answer
   x = 197,881,244.37