Finding the Fourth Proportional to 342,026,396.15, 471,983,781.69 and 185,390,140.10

Step by Step Solution

1. Step 1: Write the proportion equation
   342,026,396.15 : 471,983,781.69 = 185,390,140.10 : x
2. Step 2: Convert to fraction form
   342,026,396.15/471,983,781.69 = 185,390,140.10/x
3. Step 3: Cross multiply
   342,026,396.15x = 471,983,781.69 × 185,390,140.10
4. Step 4: Simplify right side
   342,026,396.15x = 87,501,139,410,076,992
5. Step 5: Solve for x
   x = 87,501,139,410,076,992/342,026,396.15
6. Step 6: Final answer
   x = 255,831,539.31