Finding the Fourth Proportional to 267,588,784.91, 401,264,542.13 and 143,061,196.07

Step by Step Solution

1. Step 1: Write the proportion equation
   267,588,784.91 : 401,264,542.13 = 143,061,196.07 : x
2. Step 2: Convert to fraction form
   267,588,784.91/401,264,542.13 = 143,061,196.07/x
3. Step 3: Cross multiply
   267,588,784.91x = 401,264,542.13 × 143,061,196.07
4. Step 4: Simplify right side
   267,588,784.91x = 57,405,385,334,877,072
5. Step 5: Solve for x
   x = 57,405,385,334,877,072/267,588,784.91
6. Step 6: Final answer
   x = 214,528,368.05